Finding the Fourth Proportional to 10,272,171.28, 15,408,389.76 and 4,881,349.12
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Solution
The fourth proportional to 10,272,171.28, 15,408,389.76 and 4,881,349.12 is: 7,322,086.81
Step by Step Solution
- Step 1: Write the proportion equation
10,272,171.28 : 15,408,389.76 = 4,881,349.12 : x - Step 2: Convert to fraction form
10,272,171.28/15,408,389.76 = 4,881,349.12/x - Step 3: Cross multiply
10,272,171.28x = 15,408,389.76 × 4,881,349.12 - Step 4: Simplify right side
10,272,171.28x = 75,213,729,795,593.02 - Step 5: Solve for x
x = 75,213,729,795,593.02/10,272,171.28 - Step 6: Final answer
x = 7,322,086.81
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.